Objective: To determine the prognostic impact of preepiglottic space involvement on tumor recurrence after concurrent chemoradiation therapy for patients with head and neck squamous cell carcinoma.
Design: Retrospective chart review.
Setting: Tertiary care center.
Patients: Patients who underwent concurrent chemoradiation therapy for stage T3 or T4 laryngeal carcinoma, stage T4 hypopharyngeal carcinoma, or stage T3 or T4 oropharyngeal squamous cell carcinoma from 1989 to 2005.